package com.company;

import java.math.BigInteger;
import java.security.SecureRandom;
import java.util.Random;

public class Util {
    public Util(){

        Random rnd = new Random(123456);
        System.out.println(rnd.nextInt());

        SecureRandom rnd2 = new SecureRandom();
        System.out.println(rnd2.nextInt());

        BigInteger rnd3 = new BigInteger("123456");
        System.out.println(rnd3.pow(5));
     }
}
